3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730013 Chromab. columns C18 ec, 3mL, 500mg 146,92 € 731770 Chromafix HR-XA (L) 334,18 € 730462 Chromab. columns PSA, 3mL, 500mg 185,20 €